{
 "name": "나이아신아마이드 1g당 가격 순위",
 "ingredient": "나이아신아마이드",
 "ingredient_inci": "Niacinamide",
 "unit": "KRW per g of labeled ingredient",
 "price_source": "Coupang (KR) listed price",
 "collected": "2026-11-13",
 "week": "2026-11-13",
 "count": 21,
 "page": "https://gramdang.com/niacinamide/",
 "methodology": "https://gramdang.com/method/",
 "note": "표시 함량 기준(시험값 아님). price_status가 '미확인'이면 price_date의 가격을 그대로 쓴 것입니다. 효과·자극 순위가 아닙니다. Label claims, not lab results. Not a ranking of efficacy.",
 "credit": "인용 시 gramdang.com과 기준일을 적어 주세요. / Please credit gramdang.com with the date.",
 "products": [
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   "id": "n02",
   "brand": "더마팩토리",
   "name": "나이아신아마이드 11% 워터 에센스",
   "labeled_pct": 11.0,
   "size": 150.0,
   "size_unit": "ml",
   "ingredient_amount": 16.5,
   "amount_unit": "g",
   "price_krw": 8375,
   "price_per_unit_krw": 508,
   "price_date": "2026-11-13",
   "price_status": "묶음 환산",
   "change_pct_vs_last_week": 6.1,
   "url": "https://gramdang.com/p/n02/"
  },
  {
   "rank": 2,
   "id": "n01",
   "brand": "더마팩토리",
   "name": "나이아신아마이드 20% 세럼",
   "labeled_pct": 20.0,
   "size": 80.0,
   "size_unit": "ml",
   "ingredient_amount": 16.0,
   "amount_unit": "g",
   "price_krw": 11100,
   "price_per_unit_krw": 694,
   "price_date": "2026-11-13",
   "price_status": "확인",
   "change_pct_vs_last_week": 1.9,
   "url": "https://gramdang.com/p/n01/"
  },
  {
   "rank": 3,
   "id": "n03",
   "brand": "그랑프랑",
   "name": "나이아신아마이드 20% 톤업 세럼",
   "labeled_pct": 20.0,
   "size": 80.0,
   "size_unit": "ml",
   "ingredient_amount": 16.0,
   "amount_unit": "g",
   "price_krw": 14100,
   "price_per_unit_krw": 881,
   "price_date": "2026-11-13",
   "price_status": "확인",
   "change_pct_vs_last_week": 0.0,
   "url": "https://gramdang.com/p/n03/"
  },
  {
   "rank": 4,
   "id": "n06",
   "brand": "오피겐",
   "name": "나이아신아마이드 22% + 징크 세럼",
   "labeled_pct": 22.0,
   "size": 30.0,
   "size_unit": "ml",
   "ingredient_amount": 6.6,
   "amount_unit": "g",
   "price_krw": 7900,
   "price_per_unit_krw": 1197,
   "price_date": "2026-11-13",
   "price_status": "확인",
   "change_pct_vs_last_week": -35.9,
   "url": "https://gramdang.com/p/n06/"
  },
  {
   "rank": 5,
   "id": "n04",
   "brand": "바르고바른",
   "name": "나이아신아마이드 10% 에센스",
   "labeled_pct": 10.0,
   "size": 30.0,
   "size_unit": "ml",
   "ingredient_amount": 3.0,
   "amount_unit": "g",
   "price_krw": 3830,
   "price_per_unit_krw": 1277,
   "price_date": "2026-11-13",
   "price_status": "묶음 환산",
   "change_pct_vs_last_week": 0.0,
   "url": "https://gramdang.com/p/n04/"
  },
  {
   "rank": 6,
   "id": "n05",
   "brand": "스타라이크",
   "name": "나이아신아마이드 21% 고함량 세럼",
   "labeled_pct": 21.0,
   "size": 50.0,
   "size_unit": "ml",
   "ingredient_amount": 10.5,
   "amount_unit": "g",
   "price_krw": 15950,
   "price_per_unit_krw": 1519,
   "price_date": "2026-11-13",
   "price_status": "묶음 환산",
   "change_pct_vs_last_week": 0.0,
   "url": "https://gramdang.com/p/n05/"
  },
  {
   "rank": 7,
   "id": "n08",
   "brand": "주미소",
   "name": "나이아신아마이드 20 세럼",
   "labeled_pct": 20.0,
   "size": 40.0,
   "size_unit": "ml",
   "ingredient_amount": 8.0,
   "amount_unit": "g",
   "price_krw": 17775,
   "price_per_unit_krw": 2222,
   "price_date": "2026-11-13",
   "price_status": "묶음 환산",
   "change_pct_vs_last_week": 0.0,
   "url": "https://gramdang.com/p/n08/"
  },
  {
   "rank": 8,
   "id": "n10",
   "brand": "더마네이처수",
   "name": "나이아신아마이드 10% 징크 세럼",
   "labeled_pct": 10.0,
   "size": 30.0,
   "size_unit": "ml",
   "ingredient_amount": 3.0,
   "amount_unit": "g",
   "price_krw": 6920,
   "price_per_unit_krw": 2307,
   "price_date": "2026-11-13",
   "price_status": "묶음 환산",
   "change_pct_vs_last_week": 0.0,
   "url": "https://gramdang.com/p/n10/"
  },
  {
   "rank": 9,
   "id": "n07",
   "brand": "포어센트",
   "name": "타이트닝 솔루션 나이아신아마이드 20% 세럼",
   "labeled_pct": 20.0,
   "size": 40.0,
   "size_unit": "ml",
   "ingredient_amount": 8.0,
   "amount_unit": "g",
   "price_krw": 18970,
   "price_per_unit_krw": 2371,
   "price_date": "2026-11-13",
   "price_status": "확인",
   "change_pct_vs_last_week": 0.0,
   "url": "https://gramdang.com/p/n07/"
  },
  {
   "rank": 10,
   "id": "n09",
   "brand": "디 오디너리",
   "name": "나이아신아마이드 10% + 징크 1% 세럼",
   "labeled_pct": 10.0,
   "size": 60.0,
   "size_unit": "ml",
   "ingredient_amount": 6.0,
   "amount_unit": "g",
   "price_krw": 14650,
   "price_per_unit_krw": 2442,
   "price_date": "2026-11-13",
   "price_status": "묶음 환산",
   "change_pct_vs_last_week": 2.8,
   "url": "https://gramdang.com/p/n09/"
  },
  {
   "rank": 11,
   "id": "n12",
   "brand": "이즈앤트리",
   "name": "하이퍼 나이아신아마이드 20 세럼",
   "labeled_pct": 20.0,
   "size": 20.0,
   "size_unit": "ml",
   "ingredient_amount": 4.0,
   "amount_unit": "g",
   "price_krw": 10900,
   "price_per_unit_krw": 2725,
   "price_date": "2026-11-13",
   "price_status": "확인",
   "change_pct_vs_last_week": -3.9,
   "url": "https://gramdang.com/p/n12/"
  },
  {
   "rank": 12,
   "id": "n13",
   "brand": "네오젠",
   "name": "나이아신아마이드 15% 세럼",
   "labeled_pct": 15.0,
   "size": 30.0,
   "size_unit": "ml",
   "ingredient_amount": 4.5,
   "amount_unit": "g",
   "price_krw": 14590,
   "price_per_unit_krw": 3242,
   "price_date": "2026-11-13",
   "price_status": "확인",
   "change_pct_vs_last_week": -0.8,
   "url": "https://gramdang.com/p/n13/"
  },
  {
   "rank": 13,
   "id": "n11",
   "brand": "빠저스",
   "name": "나이아신아마이드 15% + 징크피씨에이 1% 세럼",
   "labeled_pct": 15.0,
   "size": 30.0,
   "size_unit": "ml",
   "ingredient_amount": 4.5,
   "amount_unit": "g",
   "price_krw": 15300,
   "price_per_unit_krw": 3400,
   "price_date": "2026-11-13",
   "price_status": "확인",
   "change_pct_vs_last_week": null,
   "url": "https://gramdang.com/p/n11/"
  },
  {
   "rank": 14,
   "id": "n14",
   "brand": "더페이스샵",
   "name": "올티밋 나이아신아마이드 10% 스팟 포어 세럼",
   "labeled_pct": 10.0,
   "size": 30.0,
   "size_unit": "ml",
   "ingredient_amount": 3.0,
   "amount_unit": "g",
   "price_krw": 11150,
   "price_per_unit_krw": 3717,
   "price_date": "2026-11-13",
   "price_status": "확인",
   "change_pct_vs_last_week": 0.0,
   "url": "https://gramdang.com/p/n14/"
  },
  {
   "rank": 15,
   "id": "n15",
   "brand": "메디케이",
   "name": "나이아신아마이드 10% 앰플",
   "labeled_pct": 10.0,
   "size": 50.0,
   "size_unit": "ml",
   "ingredient_amount": 5.0,
   "amount_unit": "g",
   "price_krw": 18900,
   "price_per_unit_krw": 3780,
   "price_date": "2026-11-13",
   "price_status": "확인",
   "change_pct_vs_last_week": 0.0,
   "url": "https://gramdang.com/p/n15/"
  },
  {
   "rank": 16,
   "id": "n16",
   "brand": "코스알엑스",
   "name": "더 나이아신아마이드 15 세럼",
   "labeled_pct": 15.0,
   "size": 20.0,
   "size_unit": "ml",
   "ingredient_amount": 3.0,
   "amount_unit": "g",
   "price_krw": 14800,
   "price_per_unit_krw": 4933,
   "price_date": "2026-11-13",
   "price_status": "확인",
   "change_pct_vs_last_week": 17.5,
   "url": "https://gramdang.com/p/n16/"
  },
  {
   "rank": 17,
   "id": "n19",
   "brand": "아누아",
   "name": "나이아신아마이드 10 TXA 4 다크 스팟 세럼",
   "labeled_pct": 10.0,
   "size": 50.0,
   "size_unit": "ml",
   "ingredient_amount": 5.0,
   "amount_unit": "g",
   "price_krw": 28310,
   "price_per_unit_krw": 5662,
   "price_date": "2026-11-13",
   "price_status": "확인",
   "change_pct_vs_last_week": -3.9,
   "url": "https://gramdang.com/p/n19/"
  },
  {
   "rank": 18,
   "id": "n17",
   "brand": "오가니시티",
   "name": "나이아신아마이드 5% 원액 세럼",
   "labeled_pct": 5.0,
   "size": 30.0,
   "size_unit": "ml",
   "ingredient_amount": 1.5,
   "amount_unit": "g",
   "price_krw": 8900,
   "price_per_unit_krw": 5933,
   "price_date": "2026-11-13",
   "price_status": "확인",
   "change_pct_vs_last_week": 0.0,
   "url": "https://gramdang.com/p/n17/"
  },
  {
   "rank": 19,
   "id": "n18",
   "brand": "달바",
   "name": "나이아신아마이드 5% 비타 토닝 캡슐 세럼",
   "labeled_pct": 5.0,
   "size": 100.0,
   "size_unit": "ml",
   "ingredient_amount": 5.0,
   "amount_unit": "g",
   "price_krw": 31360,
   "price_per_unit_krw": 6272,
   "price_date": "2026-11-13",
   "price_status": "확인",
   "change_pct_vs_last_week": 0.0,
   "url": "https://gramdang.com/p/n18/"
  },
  {
   "rank": 20,
   "id": "n20",
   "brand": "아이블",
   "name": "익스퍼센트 나이아신아마이드 5% 앰플",
   "labeled_pct": 5.0,
   "size": 30.0,
   "size_unit": "ml",
   "ingredient_amount": 1.5,
   "amount_unit": "g",
   "price_krw": 22900,
   "price_per_unit_krw": 15267,
   "price_date": "2026-11-13",
   "price_status": "확인",
   "change_pct_vs_last_week": null,
   "url": "https://gramdang.com/p/n20/"
  },
  {
   "rank": 21,
   "id": "n21",
   "brand": "폴라초이스",
   "name": "클리니컬 나이아신아마이드 20% 트리트먼트",
   "labeled_pct": 20.0,
   "size": 20.0,
   "size_unit": "ml",
   "ingredient_amount": 4.0,
   "amount_unit": "g",
   "price_krw": 66300,
   "price_per_unit_krw": 16575,
   "price_date": "2026-11-13",
   "price_status": "확인",
   "change_pct_vs_last_week": -2.5,
   "url": "https://gramdang.com/p/n21/"
  }
 ]
}